You will get high performance FastAPI backend systems

Project details
Need a fast and scalable Python backend for your application or AI platform? I build high-performance backend systems using FastAPI with clean architecture and production-ready deployment practices.
Services include:
• REST API development
• Authentication systems
• Async processing
• WebSocket implementation
• AI backend systems
• Database optimization
• Docker deployment
• Microservices architecture
Perfect for startups, AI applications, SaaS products, and enterprise APIs.
Services include:
• REST API development
• Authentication systems
• Async processing
• WebSocket implementation
• AI backend systems
• Database optimization
• Docker deployment
• Microservices architecture
Perfect for startups, AI applications, SaaS products, and enterprise APIs.
Programming Languages
PHP, JavaScript, PythonCoding Expertise
Localization, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$100
|
Standard
$800
|
Advanced
$2,000
|
|---|---|---|---|
| Delivery Time | 1 day | 10 days | 30 days |
Number of Revisions | 1 | 3 | Unlimited |
Number of Pages | 3 | 20 | 50 |
Design Customization | - | ||
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
About Ahmad
Backend Developer | PHP - Python - AI/LLM API Integration
Semarang, Indonesia - 3:25 am local time
I specialize in that phase.
I come in, read the codebase, map the integration points, and deliver an AI or automation layer that feels native to what you've already built — not a bolted-on module that creates more problems than it solves.
I don't rewrite your system. I extend it.
— AI Intelligence Layer ──
- Claude (Anthropic) & OpenAI API integration — agents, pipelines, document analysis
- LangChain — agent design, memory, retrieval orchestration
- RAG pipelines — retrieval-augmented generation over your own data
- Prompt engineering & pipeline optimization
- AI-powered workflow automation
— System Integration & Automation ──
- CRM integration: GoHighLevel, HubSpot, Stripe, custom APIs
- Legacy PHP/Python system extension — new features without breaking existing code
- n8n & task automation pipelines
- Database design & query optimization: MySQL, PostgreSQL
— Backend Features & APIs ──
- RESTful API design & implementation: Laravel, FastAPI, Django, Flask
- Admin panel development
- SaaS features: billing (Stripe), user management, access control
- Database schema design for scale
── How I work ──
I read the codebase before writing a line. First 1–3 days: map integration points, identify constraints, clarify scope. You get a scope document before I write code — no surprises later.
Code I deliver is documented. If you're stuck with undocumented code when I'm done, I've failed.
Available for fixed-price projects and ongoing hourly retainers. Open to a small first task if you want to verify the fit before committing to a larger scope.
I don't rewrite your system. I extend it. Let's build something that lasts.
Steps for completing your project
After purchasing the project, send requirements so Ahmad can start the project.
Delivery time starts when Ahmad receives requirements from you.
Ahmad works on your project following the steps below.
Revisions may occur after the delivery date.
Brief Explanation
First we will discussed about brief projects, goals, expectation, and milestone about the projects
Analysis
Second, I will plan to map the project, break down tasks, and decide the timeline for the project.